Add TRACE calls for all gpu driver calls

ui/gl/gl_glx_api_implementation.h

Index: ui/gl/gl_glx_api_implementation.h
diff --git a/ui/gl/gl_glx_api_implementation.h b/ui/gl/gl_glx_api_implementation.h
index 4ce4fdc81c33dece48b5a5b723a9bb8f2c095fef..04249f38c7feb72f881c5e81f3c895fe4a5e300e 100644
--- a/ui/gl/gl_glx_api_implementation.h
+++ b/ui/gl/gl_glx_api_implementation.h
@@ -40,6 +40,21 @@ class GL_EXPORT RealGLXApi : public GLXApiBase {
   void Initialize(DriverGLX* driver);
 };
 
+// Inserts a TRACE for every GLX call.
+class GL_EXPORT TraceGLXApi : public GLXApi {
+ public:
+  TraceGLXApi(GLXApi* glx_api) : glx_api_(glx_api) { }
+  virtual ~TraceGLXApi();
+
+  // Include the auto-generated part of this class. We split this because
+  // it means we can easily edit the non-auto generated parts right here in
+  // this file instead of having to edit some template or the code generator.
+  #include "gl_bindings_api_autogen_glx.h"
+
+ private:
+  GLXApi* glx_api_;
+};
+
 }  // namespace gfx
 
 #endif  // UI_GL_GLX_API_IMPLEMENTATION_H_